Some take a fair amount of thinking, or a break from before you come at it with a fresh mind. It starts you off in a loop that forces you to think outside the box, and realise what kind of rules exist in this world. Then it sets you free to explore and unlock more. If ever stuck there's always other places to go, so great is the answer.

Perfectly, I'm currently running it off my laptop with an i3 2010U with a GT740M, and before now I have also played through it on an Intel HD 3000 graphics card. On both systems it has run perfectly, without any stress on the hardware.